ISO 15061-2001 PDF

Full title and description

ISO 15061:2001 — Water quality — Determination of dissolved bromate — Method by liquid chromatography of ions. This International Standard specifies an ion‑chromatographic procedure (anion exchange) for the determination of dissolved bromate in waters, including drinking water, raw and surface waters, partially treated waters and swimming‑pool water. It covers sampling, sample pretreatment, optional preconcentration, chromatographic separation, detection and reporting.

Abstract

ISO 15061:2001 defines an analytical method using ion chromatography with suppressed conductivity detection (with UV as confirmation where appropriate) to measure dissolved bromate in various water matrices. The standard sets minimum performance and quality requirements for sample handling, interference control, chromatographic separation (column quality and resolution), calibration, limits of detection as achievable with preconcentration, and presentation of results and test reports. Annexes provide example eluents, regeneration solutions, column‑switching arrangements and interlaboratory trial information.

General information

• Status: Published (International Standard; confirmed in systematic review 2023)
• Publication date: 1 July 2001
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 13.060.50 — Examination of water for chemical substances
• Edition / version: Edition 1 (2001); confirmation recorded 2023
• Number of pages: 21

Scope

The standard applies to the determination of dissolved bromate in aqueous matrices such as drinking water, mineral water, raw water, surface water, partially treated water and swimming‑pool water. It specifies procedures for sample pretreatment (including removal of ozone and particulates), optional preconcentration for trace determinations, chromatographic separation on anion‑exchange columns and detection by suppressed conductivity (UV detection described as a confirmation technique). Performance depends on column capacity and preconcentration; users must follow the quality and interference control measures described in the standard.

Key topics and requirements

• Analytical principle: ion chromatography (anion exchange) with suppressed conductivity detection; UV detection may be used for confirmation.
• Sample handling and pretreatment: measures to remove ozone, solids and matrix interferences; recommended cartridge clean‑up steps and optional preconcentration.
• Preconcentration: on‑line concentrators or off‑line techniques for low‑level bromate; recovery and blank control requirements.
• Column quality and separation: resolution requirements (e.g., resolution between bromate and nearest interfering peak) and column performance checks.
• Calibration and quantification: calibration procedures, choice of standards and working range considerations depending on column capacity.
• Interferences: identification and control of co‑eluting anions (chloride, chlorite, organic anions), and guidance on verification/confirmation of peaks.
• Precision, accuracy and reporting: method repeatability, required information in test reports and example annex material from interlaboratory trials.

Typical use and users

Environmental and public health laboratories, water utility testing units, regulatory compliance laboratories, contract testing laboratories and researchers use ISO 15061 when measuring bromate levels in drinking water supplies, process waters (e.g., ozonated waters), surface waters and recreational waters. The standard is used for routine monitoring, method validation, interlaboratory comparison and regulatory support where ion chromatography is the chosen technique.

Related standards

Standards commonly referenced alongside ISO 15061 include later or alternative bromate methods (for example ISO 11206 for ion chromatography with post‑column reaction), general ISO guidance on measurement uncertainty and calibration, and standards for determination of anions by ion chromatography (such as ISO 10304 series). Regional/adopted versions (EN ISO / national adoptions) exist for use within specific jurisdictions.

Keywords

bromate; water quality; ion chromatography; anion exchange; suppressed conductivity detection; UV confirmation; preconcentration; drinking water; swimming pool water; sample pretreatment; interference control.

FAQ

Q: What is this standard?

A: ISO 15061:2001 is an International Standard that specifies an ion‑chromatographic method for determining dissolved bromate in various water matrices.

Q: What does it cover?

A: It covers sampling and pretreatment, optional preconcentration, chromatographic separation on anion‑exchange columns, detection (suppressed conductivity; UV for confirmation), calibration, quality requirements for columns and procedures for reporting results.

Q: Who typically uses it?

A: Environmental and public‑health testing laboratories, water utilities, regulatory bodies, contract labs and researchers performing bromate analysis in drinking water, surface water, treated waters and swimming‑pool water.

Q: Is it current or superseded?

A: As published in 2001, ISO 15061 was confirmed in a systematic review in 2023 and remains a current International Standard. There are later related methods (for example ISO 11206) that provide alternative analytical approaches with different performance characteristics; laboratories should choose the method appropriate to required detection limits and regulatory requirements.

Q: Is it part of a series?

A: It is part of the family of ISO standards on water quality and chemical analysis developed by ISO/TC 147 (Water quality). Related methods and series include standards for determination of anions by ion chromatography and other bromate determination methods (e.g., ISO 11206 and standards in the ISO 10304 series).

Q: What are the key keywords?

A: bromate, ion chromatography, anion exchange, suppressed conductivity, water quality, preconcentration, drinking water, method validation.